Deferred Imitation: A 9-Month Revolution or an Emerging Ability at 6 Months?

Area of Science:

• Developmental Psychology
• Cognitive Neuroscience
• Infant Behavior

Background:

• Deferred imitation is a key social-cognitive ability emerging around 9 months.
• Prior studies suggest early imitation skills from 6 months, often using puppet tasks.

Purpose of the Study:

• To investigate deferred imitation abilities in infants aged 6-12 months.
• To examine if object type influences deferred imitation performance.
• To clarify the developmental timeline of deferred imitation.

Main Methods:

• A deferred imitation task was administered to 200 infants across four age groups (6, 8, 10, 12 months).
• Five distinct objects, including a puppet, were used to demonstrate actions.
• A 24-hour delay was implemented between demonstration and recall.

Main Results:

• Infants across all age groups demonstrated deferred imitation with various objects after a 24-hour delay.
• A significant developmental trend was observed, with older infants imitating more actions than younger infants.
• The findings indicate successful deferred imitation is present from 6 months of age.

Conclusions:

• Deferred imitation is achievable by infants from 6 months of age using diverse objects.
• Significant developmental progression in imitation skills occurs during the latter half of the first year of life.
• These results refine our understanding of early social-cognitive development.